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px-tooltip.html
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<!--
Copyright (c) 2018, General Electric
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<link rel="import" href="../polymer/polymer.html" /> <link rel="import" href="../iron-resizable-behavior/iron-resizable-behavior.html" />
<link rel="import" href="css/px-tooltip-styles.html" />
<!--
Tooltips can be positioned above, below, to the left, or to the right of the target.
A Smart Orientation option is included that will attempt to automatically choose a placement based on the real estate available – this attempts to prevent the tooltip from going off the screen.
***Note:** tooltips are not recommended for mobile or tablet applications since the hover affordance is inconsistent across devices and platforms (3D touch, tap-and-hold, proximity sensors, etc). See [px-popover](https://www.predix-ui.com/#/components/px-popover/), which is invoked on tap/click instead.
### Usage
Basic:
<div id="hoverDivTop" class="hover-tooltip">Hover for tooltip</div>
<px-tooltip
for="hoverDivTop"
orientation="top"
tooltip-message="Top tooltip">
</px-tooltip>
Custom HTML content using the default slot:
<button id="hoverButton">Hover</button>
<px-tooltip for="hoverButton">
<span><strong>My Custom Content</strong></span>
</px-tooltip>
### Styling
The following custom properties are available for styling.
Custom property | Description
:----------------|:-------------
`--px-tooltip-text-color` | Text color for the tooltip
`--px-tooltip-background-color` | Background color for the tooltip
`--px-tooltip-border-color` | Border color for the tooltip
`--px-tooltip-shadow-color` | Box shadow color for the tooltip
`--px-tooltip-max-width` | Max width of the tooltip
`--px-tooltip-z-index` | z-index for the tooltip
@element px-tooltip
@blurb Tooltip element that provides additional information to users once hovered over the target element for a specified amount of time.
@homepage index.html
@demo index.html
-->
<dom-module id="px-tooltip">
<template>
<style include="px-tooltip-styles">
:host {
--carat-top: calc(50% - 7px);
--carat-bottom: undefined;
}
</style>
<div id="tooltip" class$="[[_getClass(visible, _tooltipPos)]]">
<div id="message"><span>{{ tooltipMessage }}</span> <slot></slot></div>
</div>
</template>
</dom-module>
<script>
Polymer({
is: "px-tooltip",
behaviors: [Polymer.IronResizableBehavior],
/**
* Private Properties, used in internal view logic.
* @property _values
* @type Object
*/
_values: {
// attribute values
TYPE: {
top: "top",
bottom: "bottom",
left: "left",
right: "right"
}
},
/**
* Fired when the tooltip has been shown. Warning: at this point the tooltip has
* been moved to <body>, so if not listening directly to the tooltip
* you might miss this event.
* detail: { target: this}
* @event px-tooltip-show
*/
/**
* Fired when a request for showing a tooltip has been started, but the tooltip
* hasn't shown yet. The tooltip still hasn't been moved to <body>.
* The request might be canceled before it is shown
* detail: { target: this}
* @event px-tooltip-request-show
*/
/**
* Fired when a request for hiding the tooltip has been started. At this point the tooltip
* has been visually hidden but still is in <body> and hasn't been moved back to where it
* belongs in the dom
* detail: { target: this}
* @event px-tooltip-request-hide
*/
/**
* Fired when the tooltip has been moved back from the body to where it belongs in the dom.
* The tooltip is still visually hidden.
* detail: { target: this}
* @event px-tooltip-hide
*/
properties: {
/**
* Either the id of the element that the tooltip is anchored to or the element itself.
*
* If an ID is passed, this element must be a sibling of the tooltip.
* If an element, location in the dom does not matter.
*
* (Optional) If not provided, the px-tooltip will be attached to its parent element.
*/
for: {
type: HTMLElement,
observer: "_onFor",
notify: true,
value: ""
},
/**
* The amount of time in miliseconds before the tooltip should appear when the
* target element is hovered over.
*/
delay: {
type: Number,
reflect: true,
value: 500
},
/**
* The carat position relative to the 'for' element base on the orientation value(left & right)
* - 'top' to the elment's orientation side top position
* - 'middle' to the elment's orientation side middle position
* - 'buttom' to the elment's orientation side bottom position
*/
verticalAlign: {
type: String,
value: 'middle'
},
/**
* The direction that the tooltip is displayed relative to the
* 'for' element.
* - 'auto' calculated at render time or resize
* - 'left' to the left of the 'for' element
* - 'right' to the right of the 'for' element
* - 'top' above the 'for' element
* - 'bottom' below the 'for' element
*/
orientation: {
type: String,
value: "auto"
},
/**
* The string to be displayed in the tooltip message.
*/
tooltipMessage: {
type: String,
value: ""
},
/**
* This boolean can be used to REQUEST an open/close action to the tooltip
* Because the show/hide mechanism are asynchronous this won't represent
* the actual presence of the tooltip on the screen, this is represented
* by the `visible` property
*/
opened: {
type: Boolean,
value: false,
notify: true
},
/**
* Whether the tooltip is currently shown on screen
*
*/
visible: {
type: Boolean,
value: false,
readOnly: true,
notify: true
},
/**
* If true the tooltip will ignore the targets events it usually listens
* to: mouseup/down, mouseleave/enter... Use this to more precisely
* manually control the showing/hiding of the tooltip
*/
ignoreTargetEvents: {
type: Boolean,
value: false
},
/**
* True when opened has been requested (i.e set to true) but the tooltip
* hasn't been made visible yet. Not needed in most cases but might be
* helpful to catch edge states (i.e reclosing the tooltip after a show
* request has been issued but the tooltip isn't visible yet)
*/
openRequested: {
type: Boolean,
value: false,
readOnly: true,
notify: true
},
/**
* If smartOrientation is turned on then the tooltip will override the
* default orientation to try to better fit on the page. Smart Orientation
* will be chosen in a clockwise manner. (Example: for a tooltip with
* "right" orientation it will be below if tooltip will go off right side
* of the screen, but left if it goes off right *and* bottom side of the
* screen).
* Note: this feature is only enabled for the "top" or "bottom" orientations
*/
smartOrientation: {
type: Boolean,
value: false
},
/**
* Activates if the user hovers OFF the target element.
*/
_cancel: {
type: Boolean,
value: false
},
/**
* An object referring to the tooltip's parent element.
*/
_tooltipParent: {
type: Object,
value: function() {
return {};
}
},
followMouse: {
type: Boolean,
value: false
},
/**
* If using followMouse the mouse coordinates to display the tooltip at, *in viewport pixels*
*/
mouseCoords: {
type: Array,
value: [-9999, -9999]
},
_watchDogEnabled: {
type: Boolean,
value: false
},
_firstAttached: {
type: Boolean,
value: true
},
/**
* When shown the tooltip uses a watchdog to ensure it is removed
* if the parent is removed. The watchdog runs every watchDogTimeout ms
* If you see a performance degradation when showing tooltip you can
* increase the watchdog timeout
*/
watchDogTimeout: {
type: Number,
value: 250
},
/**
* The current target that triggered _show. Useful when target is an array
*/
_currTarget: {
type: Object
},
/**
* True when detached is caused by px-tooltip code
*/
_internalDetaching: {
type: Boolean,
value: false
},
/**
* Used internally for calculations, includes carat + spacing from target (5+5)
*/
_margin: {
type: Object,
value: function() {
return {
top: 10,
bottom: 10,
left: 10,
right: 10
};
}
},
/**
* Current position of the carat
*/
_tooltipPos: {
type: String,
value: "right"
}
},
observers: ["_onMouseMove(mouseCoords.*)", "_openedChanged(opened)", "_ignoreTargetEventsChanged(ignoreTargetEvents)"],
listeners: {
"iron-resize": "_onIronResize"
},
attached: function() {
if (this._firstAttached) {
this.setAttribute("role", "tooltip");
// we want to remember where this tooltip was placed originally.
this.set("_tooltipParent", this.parentNode);
// we want to make sure the target exists-
if (this._target) {
this.listenEvents();
} else {
//make sure tooltip find its parent if it has no for
this._onFor();
}
this.set("_firstAttached", false);
}
},
detached: function() {
if (!this._internalDetaching) {
//"genuine" detach. Ensure we call hide so that everything is reset and
//ensuring the tooltip is put back were it should be
this.set("opened", false);
this.unlistenEvents();
this._target = null;
//ensure we reset the flag so that we start re listening if we re-attach
this._firstAttached = true;
} else {
//detached triggered by our show/hide system
this._internalDetaching = false;
if (!this.openRequested) {
this.fire("px-tooltip-hide", { target: this });
}
}
},
/**
* Starts listening to all mouse events (on the target(s)) we are
* interested in: mouseenter, mouseup, mouseleave, mousedown
*/
listenEvents: function() {
if (this._target && !this.ignoreTargetEvents) {
if (Array.isArray(this._target)) {
for (var i = 0; i < this._target.length; i++) {
this.listen(this._target[i], "mouseenter", "_setOpenedTrue");
this.listen(this._target[i], "mouseup", "_setOpenedTrue");
this.listen(this._target[i], "mouseleave", "_setOpenedFalse");
this.listen(this._target[i], "mousedown", "_setOpenedFalse");
}
} else {
this.listen(this._target, "mouseenter", "_setOpenedTrue");
this.listen(this._target, "mouseup", "_setOpenedTrue");
this.listen(this._target, "mouseleave", "_setOpenedFalse");
this.listen(this._target, "mousedown", "_setOpenedFalse");
}
}
},
/**
* Stops listening to all mouse events (on the target(s)) we were interested
* in: mouseenter, mouseup, mouseleave, mousedown
*/
unlistenEvents: function() {
if (this._target) {
if (Array.isArray(this._target)) {
for (var i = 0; i < this._target.length; i++) {
this.unlisten(this._target[i], "mouseenter", "_setOpenedTrue");
this.unlisten(this._target[i], "mouseup", "_setOpenedTrue");
this.unlisten(this._target[i], "mouseleave", "_setOpenedFalse");
this.unlisten(this._target[i], "mousedown", "_setOpenedFalse");
}
} else {
this.unlisten(this._target, "mouseenter", "_setOpenedTrue");
this.unlisten(this._target, "mouseup", "_setOpenedTrue");
this.unlisten(this._target, "mouseleave", "_setOpenedFalse");
this.unlisten(this._target, "mousedown", "_setOpenedFalse");
}
}
},
_setOpenedTrue: function() {
this.set("opened", true);
},
_setOpenedFalse: function() {
this.set("opened", false);
},
_openedChanged: function() {
if (this.opened && (!this.visible || !this.openRequested)) {
this._show();
}
if (!this.opened && (this.visible || this.openRequested)) {
this._hide();
}
},
_onMouseMove: function() {
if (this.followMouse && this.thisRect && this.visible) {
if (this.orientation === "auto") {
//auto positioning
this._autoPosition();
} else if (this.smartOrientation) {
//smart positioning
this._doPosition(this._findValidSmartOrientation(this.orientation));
} else {
//hard coded positioning
this._doPosition(this.orientation);
}
}
},
/**
* This function fires on a change of the 'for' property,
* calls _getTarget and sets the target.
*/
_onFor: function() {
this.unlistenEvents();
this.target = this._getTarget();
this._target = this.target;
this.listenEvents();
},
/**
* Make sure the tooltip is positioned properly if currently showing.
*/
_onIronResize: function() {
//we check for watchdogenabled because we know that means
//we actually started trying to move the tooltip to the body
if (this._watchDogEnabled) {
//need that debounce for IE
this.debounce(
"tooltip-resize",
function() {
if (this.openRequested) {
this._processShow();
} else if (this.visible) {
this.setPosition();
}
},
50
);
}
},
/**
* This function sets the target on the component (the item hovered over)
*/
_getTarget: function() {
var ownerRoot = Polymer.dom(this).getOwnerRoot(),
parentNode = Polymer.dom(this).parentNode,
target;
if (this.for && typeof this.for === "string") {
target = Polymer.dom(parentNode).querySelector("#" + this.for);
} else if (this.for && Array.isArray(this.for) && typeof this.for[0] === "string") {
target = [];
for (var i = 0; i < this.for.length; i++) {
target.push(Polymer.dom(parentNode).querySelector("#" + this.for[i]));
}
} else if (this.for && typeof this.for === "object") {
target = this.for;
}
//DOCUMENT_FRAGMENT_NODE
else if (!parentNode || parentNode.nodeType === 11) {
//at this point if we can't find the acual owner root
//we're probably not attached yet. Just set it to null
//and wait for 'this' to be attached and rerun this function
target = ownerRoot ? ownerRoot.host : null;
} else {
target = parentNode;
}
return target;
},
/**
* This function sets a timeout with the delay value, and if
* this.cancel has not been called, moves the tooltip to the DOM root,
* and sets the tooltip as visible.
* Don't call this manually but set `opened` instead
*/
_show: function(evt) {
var _this = this,
currTarget = Polymer.dom(evt).rootTarget;
//we start out with _cancel being false, but if at any time during the timeout it's set to true, we cancel the whole thing.
this.set("_cancel", false);
//readonly prop
this._setOpenRequested(true);
setTimeout(
function() {
if (this._cancel === true) {
return false;
}
//fallback on target if needed
currTarget = currTarget ? currTarget : this.target.length ? this.target[0] : this.target;
this.set("_currTarget", currTarget);
this._watchDogEnabled = true;
//make sure it's valid to show
if (this._watchDog()) {
// now that we are all set, we move the tooltip to the dom root, where the absolute positioning works everytime,
// and we don't have to worry about overflows, the scourge of css.
this._internalDetaching = true;
this.fire("px-tooltip-request-show", { target: this });
//this will trigger first iron resize (timed out), then attached and then _processShow
document.body.appendChild(this);
}
}.bind(this),
this.delay
);
},
_processShow: function() {
if (this._cancel) {
return;
}
//readonly prop
this._setVisible(true);
this.setPosition();
this.fire("px-tooltip-show", {
target: this
});
//readonly prop
this._setOpenRequested(false);
},
/**
* Hide the tooltip, clear the timer, and move the tooltip back to whence
* it came.
* Don't call this manually but set `opened` instead
*/
_hide: function() {
// // hide this thing
this.set("_cancel", true);
if (this.visible || this.openRequested) {
this._watchDogEnabled = false;
//readonly prop
this._setOpenRequested(false);
//and we move the tooltip back to whence it came.
//readonly prop
this._setVisible(false);
this.fire("px-tooltip-request-hide", { target: this });
if (this._tooltipParent && this._tooltipParent.appendChild) {
this._internalDetaching = true;
this._tooltipParent.appendChild(this);
} else {
//something went wrong, we don't have a parent anymore. remove ourselves
//stupid IE can't remove
if (this.remove) {
this.remove();
} else {
//readonly prop
this._setVisible("visible");
}
}
}
},
/**
* This function calls the appropriate positioning function,
* according to the orientation specified, target and tooltip content
*/
setPosition: function() {
if (!this._target) {
return;
}
// using this method so that we can calculate the best position
// in the _positionXXX methods without having to do recursion, plus
// avoiding issues when in tables in IE and inside scroll panes
this.targetRect = this.followMouse ? this.getBoundingClientRect() : this._target.getBoundingClientRect();
this.thisRect = this.followMouse ? this.targetRect : this.getBoundingClientRect();
if (this.orientation === "auto") {
//auto positioning
this._autoPosition();
} else if (this.smartOrientation) {
//smart positioning
this._doPosition(this._findValidSmartOrientation(this.orientation));
} else {
//hard coded positioning
this._doPosition(this.orientation);
}
},
/**
* @method _autoPosition
* This function is called as the default positioning
* in setPosition
*
*/
_autoPosition: function() {
// smart position to right automatically for now
this._doPosition(this._findValidSmartOrientation(this._values.TYPE.right));
},
/**
* This function checks if the tooltip can be fitted on the left.
*/
_fitOnLeft: function() {
//make sure carat is styled properly.
// this._styleTheCaratAs(this._values.TYPE.left);
var mostLeft,
mostTop,
mostLow,
startX = this.followMouse ? this.mouseCoords[0] - window.pageXOffset : this.targetRect.left,
startY = this.followMouse ? this.mouseCoords[1] - window.pageYOffset : this.targetRect.top + this.targetRect.height / 2;
//we need to check if we fit on the left, but top and below as well
mostLeft = startX - this.thisRect.width - 5;
mostTop = startY - this.thisRect.height / 2;
mostLow = startY + this.thisRect.height / 2;
return mostLeft > 0 && mostTop > 0 && mostLow < window.innerHeight;
},
/**
* This function checks if the tooltip can be fitted on the right.
*/
_fitOnRight: function() {
//make sure carat is styled properly.
//this._styleTheCaratAs(this._values.TYPE.right);
var mostLeft,
mostTop,
mostLow,
startX = this.followMouse ? this.mouseCoords[0] - window.pageXOffset : this.targetRect.right,
startY = this.followMouse ? this.mouseCoords[1] - window.pageYOffset : this.targetRect.top + this.targetRect.height / 2;
//we need to check if we fit on the left, but top and below as well
var mostRight = startX + this.thisRect.width + 5;
var mostTop = startY - this.thisRect.height / 2;
var mostLow = startY + this.thisRect.height / 2;
return mostRight < window.innerWidth && mostTop > 0 && mostLow < window.innerHeight;
},
/**
* This function checks if the tooltip can be fitted on top.
*/
_fitOnTop: function() {
//make sure carat is styled properly.
//this._styleTheCaratAs(this._values.TYPE.top);
var mostHigh,
mostRight,
mostLeft,
startX = this.followMouse ? this.mouseCoords[0] - window.pageXOffset : this.targetRect.left + this.targetRect.width / 2,
startY = this.followMouse ? this.mouseCoords[1] - window.pageYOffset : this.targetRect.top;
//we need to check if we fit above, but left or right as well
var mostHigh = startY - this.thisRect.height - 5;
var mostRight = startX + this.thisRect.width / 2;
var mostLeft = startX - this.thisRect.width / 2;
return mostHigh > 0 && mostRight < window.innerWidth && mostLeft > 0;
},
/**
* This function checks if the tooltip can be fitted below.
*/
_fitBelow: function() {
//make sure carat is styled properly.
// this._styleTheCaratAs(this._values.TYPE.bottom);
var mostHigh,
mostRight,
mostLeft,
startX = this.followMouse ? this.mouseCoords[0] - window.pageXOffset : this.targetRect.left + this.targetRect.width / 2,
startY = this.followMouse ? this.mouseCoords[1] - window.pageYOffset : this.targetRect.bottom;
//we need to check if we fit below, but left or right as well
var mostLow = startY + this.thisRect.height + 5;
var mostRight = startX + this.thisRect.width / 2;
var mostLeft = startX - this.thisRect.width / 2;
return mostLow < window.innerHeight && mostRight < window.innerWidth && mostLeft > 0;
},
/**
* This function tries the find the appropriate orientation for the current
* tooltip and orientation passed. it will try every orientation clockwise
* until it finds one that fits, and return the startingOrientation if none fit.
*/
_findValidSmartOrientation: function(startingOrientation) {
var orientationList = [this._values.TYPE.left, this._values.TYPE.top, this._values.TYPE.right, this._values.TYPE.bottom],
i = 0,
index;
//find starting index within the orientation listen
switch (startingOrientation) {
case this._values.TYPE.left:
index = 0;
break;
case this._values.TYPE.top:
index = 1;
break;
case this._values.TYPE.right:
index = 2;
break;
case this._values.TYPE.bottom:
index = 3;
break;
}
for (i = 0; i < 4; i++) {
if (this._orientationFit(orientationList[index])) {
//we found the first orientation that fit, return it
return orientationList[index];
}
//keep searching. Make sure we loop through the array by resetting the
//index if we go too far
index = (index + 1) % 4;
}
return startingOrientation;
},
/**
* This function checks if the tooltip will fit for the given orientation.
*/
_orientationFit: function(orientation) {
switch (orientation) {
case this._values.TYPE.right:
return this._fitOnRight();
break;
case this._values.TYPE.left:
return this._fitOnLeft();
break;
case this._values.TYPE.top:
return this._fitOnTop();
break;
case this._values.TYPE.bottom:
return this._fitBelow();
break;
}
},
/**
* This function positions the tooltip on left/right/top/bottom irrespective
* of everything else, i.e smart orientation.
*/
_doPosition: function(orientation) {
switch (orientation) {
case this._values.TYPE.right:
this._positionRight();
break;
case this._values.TYPE.left:
this._positionLeft();
break;
case this._values.TYPE.top:
this._positionTop();
break;
case this._values.TYPE.bottom:
this._positionBottom();
break;
}
},
/**
* This function sets the carat and tooltip position on top.
*/
_positionTop: function() {
this.set("_tooltipPos", "top");
if (this.followMouse) {
this.style.left = this.mouseCoords[0] - this.thisRect.width / 2 + "px";
this.style.top = this.mouseCoords[1] - this.thisRect.height - this._margin.top + "px";
} else {
// position the tooltip itself
this.style.left = this._getTargetPositionCenterOfLeftRight() - this.thisRect.width / 2 + "px";
this.style.top = this._getTargetPositionTop() - this.thisRect.height - this._margin.top + "px";
}
},
/**
* This function sets the carat and tooltip position on bottom.
*/
_positionBottom: function() {
this.set("_tooltipPos", "bottom");
if (this.followMouse) {
this.style.left = this.mouseCoords[0] - this.thisRect.width / 2 + "px";
this.style.top = this.mouseCoords[1] + this._margin.bottom + "px";
} else {
// position the tooltip itself
this.style.left = this._getTargetPositionCenterOfLeftRight() - this.thisRect.width / 2 + "px";
this.style.top = this._getTargetPositionBottom() + this._margin.bottom + "px";
}
},
/**
* This function sets the carat and tooltip position on left.
*/
_positionLeft: function() {
var top;
this.set("_tooltipPos", "left");
if (this.followMouse) {
this.style.left = this.mouseCoords[0] - this.thisRect.width - this._margin.top + "px";
this.style.top = this.mouseCoords[1] - this.thisRect.height / 2 + "px";
} else {
if (this.verticalAlign === 'middle') {
top = Math.round(this._getTargetPositionCenterOfTopBottom() - this.thisRect.height / 2) + "px";
this.updateStyles({
'--carat-top': (Math.round(this.thisRect.height / 2) - 7.5) + "px",
'--carat-bottom': undefined,
});
} else if (this.verticalAlign === 'bottom') {
top = Math.round(this._getTargetPositionTop() - this.thisRect.height + this.targetRect.height) + "px";
this.updateStyles({
'--carat-top': undefined,
'--carat-bottom': Math.round(this.targetRect.height / 2) + "px"
});
} else {
top = Math.round(this._getTargetPositionTop()) + "px";
this.updateStyles({
'--carat-top': Math.round(this.targetRect.height / 2 - 7.5) + "px",
'--carat-bottom': undefined
});
}
// position the tooltip itself
this.style.left = this._getTargetPositionLeft() - this.thisRect.width - this._margin.left + "px";
this.style.top = top;
}
},
/**
* This function sets the carat and tooltip position on right.
*/
_positionRight: function() {
var top;
this.set("_tooltipPos", "right");
if (this.followMouse) {
this.style.left = this.mouseCoords[0] + 10 + "px";
this.style.top = this.mouseCoords[1] - this.thisRect.height / 2 + "px";
} else {
if (this.verticalAlign === 'middle') {
top = Math.round(this._getTargetPositionCenterOfTopBottom() - this.thisRect.height / 2) + "px";
this.updateStyles({
'--carat-top': (Math.round(this.thisRect.height / 2) - 7.5) + "px",
'--carat-bottom': undefined,
});
} else if (this.verticalAlign === 'bottom') {
top = Math.round(this._getTargetPositionTop() - this.thisRect.height + this.targetRect.height) + "px";
this.updateStyles({
'--carat-top': undefined,
'--carat-bottom': Math.round(this.targetRect.height / 2) + "px"
});
} else {
top = Math.round(this._getTargetPositionTop()) + "px";
this.updateStyles({
'--carat-top': Math.round(this.targetRect.height / 2 - 7.5) + "px",
'--carat-bottom': undefined
});
}
// position the tooltip itself
this.style.left = this._getTargetPositionRight() + this._margin.left + "px";
this.style.top = top;
}
},
/**
* This function returns the target position on top
*/
_getTargetPositionTop: function() {
return this._getTargetPosition("top", "pageYOffset"); // use pageYOffset & pageXOffset, scrollX and scrollY undefined in IE
},
/**
* This function returns the target position on bottom
*/
_getTargetPositionBottom: function() {
return this._getTargetPositionTop() + this.targetRect.height;
},
/**
* This function returns the target position on left
*/
_getTargetPositionLeft: function(smartOrientation) {
return this._getTargetPosition("left", "pageXOffset");
},
/**
* This function returns the target position on right
*/
_getTargetPositionRight: function() {
return this._getTargetPositionLeft() + this.targetRect.width;
},
/**
* This function returns the target position on the center of
* either the top or bottom.
*/
_getTargetPositionCenterOfTopBottom: function() {
return this._getTargetPositionTop() + this.targetRect.height / 2;
},
/**
* This function returns the target position on the center of
* either the left or right.
*/
_getTargetPositionCenterOfLeftRight: function(smartOrientation) {
return this._getTargetPositionLeft() + this.targetRect.width / 2;
},
/**
* This function calculates the target position, with passed
* parameters
*/
_getTargetPosition: function(topOrLeft, pageXOrYOffset) {
var position = this.targetRect[topOrLeft]; // use the targetRect (which uses bounding box) initially
position += window[pageXOrYOffset]; // factor in any window scrolling we've done
return position;
},
_isWithinDom: function(node) {
var current = node,
search = true;
while (current && current.nodeName !== "BODY") {
//shadow root
if (current.nodeType === 11) {
current = current.host;
} else {
current = current.parentNode;
}
}
return !!current;
},
/**
* Watchdog when the tooltip is showing so it can be removed
* if the parent is removed. Returns false when the tooltip is removed.
*/
_watchDog: function() {
//try to figure out if target is still in the document
if (!this._isWithinDom(this._currTarget)) {
this._watchDogEnabled = false;
//IE can't remove
if (this.remove) {
this.remove();
} else {
this.set("opened", false);
}
//if target is an array make sure we remove it from the array
if (this.target.length) {
this.target.remove(this._currTarget);
}
return false;
} else if (this._watchDogEnabled) {
setTimeout(
function() {
this._watchDog();
}.bind(this),
this.watchDogTimeout
);
}
return true;
},
_getClass: function() {
var res = "tooltip-container ";
if (!this.visible) {
res += " hidden ";
}
//style the arrow
res += this._tooltipPos;
return res;
},
_ignoreTargetEventsChanged: function() {
//make sure the handlers are removed
if (this.ignoreTargetEvents) {
this.unlistenEvents();
} else {
this.listenEvents();
}
}
});
</script>